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Protocol Details

Collection and Storage of Umbilical Cord Hematopoietic Stem Cells for Sickle Cell Disease Therapy

This study is currently recruiting participants.

Summary | Eligibility | Citations | Contacts




Sponsoring Institute

National Heart, Lung and Blood Institute (NHLBI)

Recruitment Detail

Type: Participants currently recruited/enrolled
Gender: Male & Female
Min Age: 18 Years
Max Age: 45 Years

Referral Letter Required


Population Exclusion(s)

Adults who are or may become unable to consent;


Stem Cells;
Sickle Cell Disease;
Umbilical Cord Blood;
Natural History

Recruitment Keyword(s)



Sickle Cell Disease;
Sickle Cell Trait

Investigational Drug(s)


Investigational Device(s)




Supporting Site

National Heart, Lung, and Blood Institute

This study will determine the best ways to collect, process and store umbilical cord blood from babies with sickle cell disease, sickle cell trait and unaffected babies. Sickle cell disease is an abnormality of the hemoglobin in red blood cells that causes the cells to change shape and clump together, preventing their normal flow in the bloodstream. This impairs blood flow to various organs, and the resulting oxygen deprivation causes organ damage.

Cord blood is rich in stem cells (cells produced in the bone marrow that mature to different types of blood cells), which may prove useful in new sickle cell therapies. However, cord blood from babies with sickle cell trait, sickle cell disease and normal babies may act differently under laboratory conditions, so it is important to learn how best to work with blood from all three groups of babies for future use in possible treatments.

Pregnant women between 18 and 45 years of age who are at risk of having an infant with sickle cell disease and normal volunteers who are pregnant and not at risk for this disease may be eligible for this study. Potential participants will be counseled about donating her infant s blood in order to make an informed choice.

All women who participate in the study will provide a medical history and have blood collected from the umbilical cord and placenta (afterbirth) after the baby s delivery. The blood will be tested for various infectious diseases, processed, frozen and stored for research purposes. In addition, blood from women with babies at risk for sickle cell disease will be tested for the presence of the sickle cell gene, tissue typed, and used for research as follows:

- Sickle cell disease - If cord blood tests show the baby has sickle cell disease, the blood will be frozen for an indefinite period of time for possible use in future treatment of the child. This treatment could include stem cell transplantation or gene therapy, treatments are not currently considered routine for sickle cell disease.

- Sickle cell trait or normal hemoglobin - If cord blood tests show the baby has sickle cell trait or is unaffected, the blood will be processed and stored for up to 3 years, during which time it may possibly be used to treat a currently living or future sibling with sickle cell disease. After 3 years, the participant may agree to either have the blood discarded, given to research or moved to another facility for continued storage at the participant s expense, if there is a storage fee. Alternatively, if there is no anticipated future need for the collected blood, or if it does not meet standards needed for future treatment, it will be used in NIH-approved research studies.

Participants and their family doctor or the baby s pediatrician will be contacted twice a year for information about changes in the baby s health. Participants may also be asked permission to perform new tests developed by researchers.

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Pregnant women who are at risk of having an infant or infants (in case of multiple births) with sickle cell

disease of the following types:

Hemoglobin Sbeta 0 thalassemia

Hemoglobin Sbeta + thalassemia

Hemoglobin SC

Hemoglobin SD

Hemoglobin SE

Hemoglobin SS

Or other sickle-related variant determined acceptable by PI

1. Maternal subjects must be between 18 and 45 years old.

2. Maternal subjects must be able to provide informed consent.

3. Maternal subjects must work with their obstetrician to insure appropriate cord blood collection, sample collection, and completion of related documents.

4. Maternal subjects enrolled on other studies are not excluded, unless the other study may interfere with the present one.


1. The maternal subject will not be eligible for study if she is known to be positive for one or more of the following diseases transmissible by blood: HIV, hepatitis B, hepatitis C, WNV, HTLV or ZIKV.

2. Maternal subject will not be eligible for the study if she has active syphilis, toxoplasmosis, malaria or

3. Maternal subject will not be eligible for the study if the pregnancy resulted from egg donation or sperm donation.

4. Maternal subject is unable to give informed consent.

5. Maternal subject is known to have a fetus with a significant congenital anomaly, either not compatible with life, or requiring immediate surgical intervention or care in the Neonatal Intensive Care Unit.

6. Maternal subject has cancer or received treatment for cancer during pregnancy.

7. Infant is premature (<34 weeks).

8. Maternal subject may be excluded at the time of delivery if the attending physician or collection staff deems that the cord blood collection is inadvisable, due to unanticipated obstetrical complications.

9. Cord blood received by CCBB/STLC is greater than 72 hours from collection

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Cord Blood Transplantation Study (COBLT): cord blood bank standard operating procedures

Automated partial exchange transfusion in sickle cell anemia

Induction of high levels of allogeneic hematopoietic reconstitution and donor-specific tolerance without myelosuppressive conditioning

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Principal Investigator

Referral Contact

For more information:

John F. Tisdale, M.D.
National Heart, Lung and Blood Institute (NHLBI)
(301) 402-6497

Wynona Coles
National Heart, Lung and Blood Institute (NHLBI)
National Institutes of Health
Building 10
Room 4-5350
10 Center Drive
Bethesda, Maryland 20892
(301) 402-2104

Office of Patient Recruitment
National Institutes of Health Clinical Center (CC)
Building 61, 10 Cloister Court
Bethesda, Maryland 20892
Toll Free: 1-800-411-1222
Local Phone: 301-451-4383
TTY: TTY Users Dial 7-1-1

Clinical Trials Number:


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